WhitakerAudio J C Whitaker 20 W Stereo Audio Amplifier, Manual

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– Using caution to not scratch the finish, tighten the power switch SW51. Do not over-
tighten, as the shaft is made of plastic. Reinstall the top push-button switch. Try the switch
to confirm proper operation.
– Tighten the Speaker on/off switch SW52 and Auto-Off enable/disable switch SW202. It is
often best to tighten the switch by holding the mounting nut steady and turning the body of
the device from the chassis side. This will reduce the possibility of scratching the font
panel finish.
– Install the 35 mm jack in the available Headphone opening on the front panel. Secure
using the hardware provided.
– Install knobs on the Volume potentiometers. Using a small common screwdriver, run the
set screw out so the knob will fit on the shaft. Set the potentiometer to the full
counterclockwise position. Place the knob on the shaft and set to the 7 o’clock position
(approximately). Tighten the set screw.
The front panel components have been installed. The completed front panel is shown in
Figure 5.8.
5.6.2 Back Panel Components
Collect the back panel components, which include the following:
• Speaker output terminals (TB1 and TB2)
• Circuit breaker CB51
• RCA input jacks
Figure 5.8 Completed front panel.